A man having blood group O marries a woman having blood group A whose father was also O. What is the probability of 'O' in their offspring?
Correct answer: A. 50%
- A. 50%
- B. 75%
- C. 25%
- D. 0%
Explanation
Woman with A whose father was O must be AO. Cross AO × OO → offspring AO (A) or OO (O) in 50% each.
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About Inheritance
Mendel's laws explain segregation, independent assortment and the prediction of genetic ratios using alleles, genotypes and phenotypes. The chapter also covers linked genes, recombination and crossing over during meiosis, then applies pedigree reasoning to X-linked recessive traits, which show different inheritance patterns in males and females.
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